Fundamentals of statistical signal processing: estimation theory
Fundamentals of statistical signal processing: estimation theory
Cramér-Rao bound for NDA SNR estimates of square QAM modulated signals
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Cramér-Rao lower bounds for NDA SNR estimates of square QAM modulated transmissions
IEEE Transactions on Communications
Cramer-Rao bounds of DOA estimates for BPSK and QPSK Modulated signals
IEEE Transactions on Signal Processing
SNR estimation for nonconstant modulus constellations
IEEE Transactions on Signal Processing
Hi-index | 35.68 |
Considering orthogonal frequency-division multiplexing transmissions, analytical expressions for the Cramér-Rao lower bounds for the subcarrier signal-to-noise ratio (SNR) estimates are derived. The transmitted signal is assumed to be corrupted by additive white Gaussian noise on the different subcarriers. The channel is assumed to be slowly time-varying over the observation interval, so that it can be assumed constant. It will be shown that the achievable performance on subcarrier SNR estimation can be significantly improved by exploiting the mutual information (the same experienced noise power) between the different tones.